ICGA Journal - Volume 10, issue 2

Authors: Herschberg, Bob | van den Herik, Jaap

Article Type: Editorial

DOI: 10.3233/ICG-1987-10201

Citation: ICGA Journal, vol. 10, no. 2, pp. 57-58, 1987

Authors: Slate, David J.

Article Type: Research Article

Abstract: The transposition table is a common tool for conveying information between different branches of a computer-chess search tree. This paper discusses a technique, based on a method described by A. Samuel (1959), for accumulating selected information from many games and then utilizing it subsequently via the transposition table. This transfer of information constitutes a kind of learning from experience. Although position-specific, it is shown to be capable of a modest degree of generalization. A program was implemented to test this algorithm, and preliminary examples of its behavior are given, illustrating some of its capabilities and limitations.

DOI: 10.3233/ICG-1987-10202

Citation: ICGA Journal, vol. 10, no. 2, pp. 59-71, 1987

Authors: de Groot, A.D.

Article Type: Research Article

DOI: 10.3233/ICG-1987-10203

Citation: ICGA Journal, vol. 10, no. 2, pp. 72-77, 1987

Authors: Hartmann, Dap

Article Type: Research Article

Abstract: The notion of mobility has been recognized as a fundamental issue at least as far back as Euwe’s formalization of the game. This notion, however, is not uniformly defined: it may be counted as the number of legal moves or of pseudo-legal moves, as the number of squares attacked or as the number of distinct squares attacked. All these notions have a high correlation. The present work, based on analysing 60,177 positions from Grandmaster games, has been rescaled in order to make it comparable with De Groot’s 1946 work and, by and large, confirms his results. The same applies to …the Average Branching Factor. With due allowance for the different character of games analysed, Slater’s 1950 results are substantiated as well. Show more

DOI: 10.3233/ICG-1987-10204

Citation: ICGA Journal, vol. 10, no. 2, pp. 78-90, 1987

Authors: Herschberg, I.S. | van den Herik, H.J.

Article Type: Other

DOI: 10.3233/ICG-1987-10206

Citation: ICGA Journal, vol. 10, no. 2, pp. 91-93, 1987

Authors: Hünen, R.W.G.

Article Type: Other

DOI: 10.3233/ICG-1987-10205

Citation: ICGA Journal, vol. 10, no. 2, pp. 91-91, 1987

Authors: Michie, Donald | Bratko, Ivan

Article Type: Correction

DOI: 10.3233/ICG-1987-10207

Citation: ICGA Journal, vol. 10, no. 2, pp. 94-94, 1987

Article Type: Correction

DOI: 10.3233/ICG-1987-10209

Citation: ICGA Journal, vol. 10, no. 2, pp. 95-95, 1987

Authors: Roycroft, A.J.

Article Type: Correction

DOI: 10.3233/ICG-1987-10208

Citation: ICGA Journal, vol. 10, no. 2, pp. 95-95, 1987

Authors: Hartmann, Dap

Article Type: Book Review

DOI: 10.3233/ICG-1987-10210

Citation: ICGA Journal, vol. 10, no. 2, pp. 96-97, 1987